Should I go get it looked at? Sorry In advance!

It has been a week since I fell of my bike on to a rocky path. Scraped my knee pretty bad. I asked for advice here and just cleaned it and bandaged it. I’ve been cleaning it and putting an antibiotic cream but it looks like this now.......

Sorry for the pics. Just need more advice....

Just after it happened.

Couple hours after (also pic I posted)

Today 🤢🤢 (the white marks are from me scratching I can’t find the itch so I went all around )